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Scalable Synthesis and Multi‐Electron Transfer of Aniline/Fluorene Copolymer for Solution‐Processable Battery Cathodes
Author(s) -
Li Fei,
Zou Yang,
Wang Shaoyang,
Fang Lei,
Lutkenhaus Jodie L.
Publication year - 2017
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201700067
Subject(s) - aniline , materials science , fluorene , battery (electricity) , copolymer , cathode , quartz crystal microbalance , organic radical battery , polymer , chemical engineering , electrochemistry , electrode , electron transfer , polymer chemistry , organic chemistry , composite material , chemistry , power (physics) , physics , adsorption , quantum mechanics , engineering
In this study, the authors report the highly efficient, multigram‐scale synthesis of an ester‐functionalized, poly(aniline‐co‐fluorene) polymer. The excellent solubility and film‐forming ability of this polymer facilitate its application as a reversible battery cathode. Electrochemical quartz crystal microbalance with dissipation monitoring confirms a multi‐electron transfer process, resulting in a specific discharge capacity of 51 mAh g −1 and a high reversible doping level of 0.69. Galvanostatic cycling at 1 C demonstrates excellent electrode stability with a capacity retention of 95.2% after 100 cycles. Therefore, this work demonstrates a novel electroactive polymer that exemplifies how chemical functionality may be used to properly balance processability and electroactivity of macromolecular battery cathodes.